# SDR UPS02839869

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2002
- Submitted: November 6, 2002
- Operation: Air carrier
- Aircraft: N748UP
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45948
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Discharged
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS02839869

## Discrepancy

INSPECTION TYPE:N/A EMERGENCY LIGHTS INOP WHEN SWITCH PLACED IN ARM POS AND BAT/EXT POWER SWITCH IN BAT FAILS TEST REF PS CHK.  REPLACED EMERGENCY LIGHTING BATTERY AND RELAY UNIT, OPS CHK GOOD REF 33-50-02.

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